Abstract: Various methods and devices for securing pleasure craft, for example, surf boards, snow boards, or canoes, which provide for ease of securing the craft and ease of releasing the craft are disclosed. These methods and devices typically employ some form of cables or other tensile members and cable locking or securing devices. Cable securing and locking devices are also disclosed. In particular, various cable securing devices consisting of a first u-shaped channels and a second u-shaped channel pivotably connected to the first u-shaped channel are disclosed. These u-shaped channels include cable attaching and tensioning devices which facilitate the restraint and removal of the cable. One attaching device includes a threaded nut-type fastener for retaining the cable in the channel and rotating disk element over which the cable passes which facilitates the tensioning of the cable during restraint of a craft or other device.

Abstract: A tension adjusting device for rackets. The system allows the player to adjust the tension of a number of strings while in the course of a match. By rotating a device having an offcenter hole and irregular sides the string which through it passes is extended or allowed to contract thereby providing a difference in the play of the racket.

Abstract: A quick-release fitting for tensioning and untensioning a sailboat stay that extends between the hull and a mast of the sailboat. Upper and lower barrels are connected together by a release lever that is held in place by a quick-release pin. When the pin is removed, the lever pivots away from its normal position away from the upper barrel to increase the spacing between the barrels and untension the sailboat stay.